No, not really. The car issue is due to WiFi access to service personnel. Intercepting wired Ethernet is difficult, requires close proximity ( feet ) and one can be reasonably sure military cabling is shielded. Modifying packets without physical access would be impossible. If there is a realistic hacking scenario, it would be due to code injection from a USB stick or disk. My own guess is they were trailing one shaft, suffered some kind of physical rudder control failure, and weren't able to fix it/switch to a backup nor steer with differential propeller thrust. If it was a mechanical issue with hardware that physically moves the rudders, there is backup, manual, etc but it takes time to activate it.